82 lines
2.4 KiB
JavaScript
82 lines
2.4 KiB
JavaScript
doTest = function( signal ) {
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// Test basic replica set functionality.
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// -- Replication
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// -- Failover
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// Replica set testing API
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// Create a new replica set test. Specify set name and the number of nodes you want.
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var replTest = new ReplSetTest( {name: 'testSet', nodes: 3} );
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// call startSet() to start each mongod in the replica set
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// this returns a list of nodes
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var nodes = replTest.startSet();
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// Call initiate() to send the replSetInitiate command
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// This will wait for initiation
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replTest.initiate();
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// Call getMaster to return a reference to the node that's been
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// elected master.
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var master = replTest.getMaster();
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// Calling getMaster also makes available the liveNodes structure,
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// which looks like this:
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// liveNodes = {master: masterNode,
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// slaves: [slave1, slave2]
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// }
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printjson(replTest.liveNodes);
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// Here's how you save something to master
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master.getDB("foo").foo.save({a: 1000});
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// This method will check the oplogs of the master
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// and slaves in the set and wait until the change has replicated.
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replTest.awaitReplication();
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cppconn = new Mongo( replTest.getURL() ).getDB( "foo" );
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assert.eq( 1000 , cppconn.foo.findOne().a , "cppconn 1" );
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{
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// check c++ finding other servers
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var temp = replTest.getURL();
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temp = temp.substring( 0 , temp.lastIndexOf( "," ) );
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temp = new Mongo( temp ).getDB( "foo" );
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assert.eq( 1000 , temp.foo.findOne().a , "cppconn 1" );
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}
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// Here's how to stop the master node
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var master_id = replTest.getNodeId( master );
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replTest.stop( master_id );
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// Now let's see who the new master is:
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var new_master = replTest.getMaster();
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// Is the new master the same as the old master?
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var new_master_id = replTest.getNodeId( new_master );
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assert( master_id != new_master_id, "Old master shouldn't be equal to new master." );
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{
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// this may fail since it has to reconnect
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try {
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cppconn.foo.findOne()
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}
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catch ( e ){
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}
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assert.eq( 1000 , cppconn.foo.findOne().a , "cppconn 2" );
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}
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// Here's how to restart a node:
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replTest.restart( master_id );
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// Shut down the set and finish the test.
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replTest.stopSet( signal );
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}
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doTest( 15 );
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